Disk-sharpener.



No. 872,981. 7 PATENTED DEC. 3, 1907.

J. WISSLER.

DISK SHARPENER. APPLICATION FILED mo. 6, 1905. RENEWED JULY 2. 1907.

WITNESSES: INVENTOH UNITE STATS JACOB WISSLER, OF LYNDHURST, VIRGINIA,ASSIGNOR OF ONE-HALF TO ROBERT LEE LAMBERT, WALTER ARMSTRONG, HAROLD H.LANTZ, AND ALFRED E. GLASGOCK. OF

WASHINGTON, DISTRICT OF COLUMBIA.

DIsK-sHARPnNE'R.

Specification of Letters Patent.

Patented Dec. 3, 1907.

Application filed December 6. 1905. Serial No. 290.615. Renewed July 2.1967. Serial No. 381L927- To all whom it may concern:

Be it known that I, JACOB WissLER, citizen of the United States,residing at Lyndburst, in the county of Augusta and State of Virginia,have invented new and useful Improvements in Disk-Sharpeners, of whichthe following is a specification.

This invention has relation to disk sharpeners and it consists in thenovel construction and arrangement of its parts as hereinafter shown anddescribed.

The object of the invention is to provide an attachment for diskimplements such as barrows, plows, cultivators or drills, saidattachment being so arranged as to hold an abrading material in contactwith the edge of the disk as the same rotates in working the soil; such.frictional cont-act between the disk and the abrading material sharpensthe disk while it is working. This arrangement saves a great deal oftime and annoyance in keeping the disk edges in proper condition as thesharpening is done automatically.

One form of the invention provides a rotating abrading material gearedwith the disk shaft. The rotating abradmg material rotates in theopposite direction from that of the disk consequently the process ofsharpening is facilitated.

l/Vhen one disk issufficiently sharpened the sharpening device may beshifted to another disk and when all are sharpened the sharpening devicemay be so located as not to be in contact with any disk but at the sametime is connected with the implement.

- In the accompanying drawing :Figure 1, is a side elevation of a diskshowing a rotating sharpener applied thereto. Fig. 2, is an edgeelevation of the rotating sharpener as shown in Fig. 1, and shbwingseveral disks in section. showing a sharpener applied thereto. Fig. 4,is an end elevation of the sharpener as shown in Fig. 3, and showingseveral disks in section, and Fig. 5, is a perspective view of the shoefor holding the abrading material as shown in Figs. 3, and 4.

In the form of the invention as shown in Figs. 1, and 2, the disks 1,are mounte upon the disk shaft 2, in the usual manner. The rod 3, issuitably supported upon the frame work of-the implementand extendsparallel with the shaft 2.

Fig. 3, is a side elevation of a disk The abrading wheel 4, is looselyjournaled vupon the rod 3, and is held in proper position .upon the saidrod by the collars 5, 5, which The are also located upon the said rod.

wheel 4,is provided on one side with a sprocket wheel 6, and thesprocket wheel 7, is fixed upon the shaft The sprocket chain8,.surrounds the wheels 6, and 7. The edge of the wheel 4, is in contactwith the edge of one of the disks 1. As the disk 1, rotates the shaft 2,also rotates and through the s rocket wheel 7, chain 8, and s.rocketWheel 6, rotary motion is transinitte to the wheel 4. The Wheel 4,rotates in the opposite direction from that of the disk 1, and the edgeof the said disk is sharpened. The sprocket wheel 7, is made in sectionswhich are bolted to ether as shown in Fig. 1. When one dis 1, issufficiently sharpened the wheel 7 ,is removed from the shaft 2, and isplaced adjacent another disk 1. The wheel 4, is shifted along the rod 3,until its edge is in contactwith the last said disk and is then securedby setting the collars 5, 5, I

' and is held in place thereon by the set screw 10. The fiat spring 11,is attached at one end to the said collar 9. The shoe 1;, is at tachedto the other end of the said flatspring 11, and within the said shoe 12,the abrading block 13, is secured. The said block bears against the edgeof the disk 1, and sharpens the same as it rotates. The abradingmaterial in either instance may be emery, stone or any other suitablegrit.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

1. -In combination with a disk implement a disk sharpener consisting ofa flat spring attached at one end to the implement, an abrading materialattached to the other end of said spring and held in contact with theedge of the disk as itrotates while working a disk sharpener consistingof a fiat spring attached at one end to the implement a shoeattached tothe other end of said spring, an

7 ing against the edge of the disk as it rotates while Working theground.

3. In combination with a disk implement a disk sharpener consisting of aflat spring having at one end a collar by means of which it may beadjnstably attached to the implement, an abrading material attached tothe other end of said spring-and held in contact with the edge-of thedisk as it rotates While Working the ground.

4. In combination Witha disk implement a disk sharpener consisting of afiat spring having at one end a collar by means of iivhich it may beadjustably attached to the imple- 15 ment, a shoe attached to the otherend of said spring, an abrading material held in said shoe and bearingagainst the edge of the disk as it rotates While Working the ground.

In testimony whereof I affix my signature, 20 in presence of twosubscribing Witnesses.

JACOB WISSLER.

Witnesses:

J. A. PATTERSON, E. D. WISSLER.

